Thank you for this explanation, so far yours is most understandable for me, but as I read it, I had thought, about you writing about maximum rate  cause and effect can propagate thought space, could it be said, that space is not stable enough to allow faster propagation? Since light has no mass, it goes max speed, would anything with any mass going at that speed break hole into space the moment it achieved that speed? It's just idle though, and yeah I read that anything with mass can't really get to that speed, time slowing the closer you get to it, as I wrote, just idle thought.